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EC number: 201-251-0
CAS number: 80-10-4
Table 1. Results of analysis of test media
Nominal test substance concentration (mg/L)
Mean measured concentration (mg/L)
Mean measured concentration as percentage of nominal
Table 2. Test results
Mean percentage mortality after 24 hours
Mean percentage mortality after 48 hours
Mean percentage mortality after 72 hours
Mean percentage mortality after 96 hours
96-hour LC50 = 39 mg/L
Data were not available for dichloro(diphenyl)silane (CAS
80-10-4). However due to its rapid rate of hydrolysis (half-life 10
seconds) it is more relevant to consider the hydrolysis product,
diphenylsilanediol, as under conditions relevant to ecotoxicity testing,
exposure will predominantly be to the hydrolysis product. Measured data
were available for the diphenylsilanediol. A 96 hour LC50 of
39 mg/l was determined for Oncorhynchus mykiss based on a study
conducted according to OECD guideline 203 (Wildlife international ltd,
2004a). This study is considered reliable and was selected as key. This
is supported by QSAR calculated 96 hr LC50 of 31.6 mg/l.
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